cover 1916-18 U5 and fronts (2), the collection of censor markings with 1916 business U5 to Holland showing straight-line "PASSED BY CENSOR, ADEN" in black; 1916-18 to G.B. (6) with ornamental circular-framed "PASSED CENSOR/ADEN" (Robertshaw 82) showing A.75, 105, 108 (3) and 156; 1918 fronts (2) to U.S.A. showing Robertshaw 82 (A 159), one also showing small "POSTAL/CENSOR/ADEN" (R.83b). (9)